Bill Cain is an American playwright and Jesuit.
Cain founded a Shakespeare company in Boston.
He wrote the play Stand Up Tragedy and the play Nine Circles
He wrote the television series "Nothing Sacred" a controversial depiction of life in a modern Catholic parish, which aired in 1997-98 on ABC.
His play Equivocation premiered at the Oregon Shakespeare Festival in Ashland, Oregon, in 2009. Bill Rauch, Artistic Director of OSF, directed; Shag was played by Anthony Heald, Richard and Ensemble by Richard Elmore, Nate and Ensemble by Jonathan Haugen, Sharpe and Ensemble by John Tufts, Armin and Ensemble by Gregory Linington, and Judith by Christine Albright. The same cast later appeared at Seattle Repertory Theater as well. It was later produced at City Center in New York City in March 2010. and as part of the 2014 season at Will Geer's Theatricum Botanicum in Topanga, California, with Ted Barton, Alan Blumenfeld, Dane Oliver, Franc Ross, Taylor Jackson Ross, and Paul Turbiak in Mike Peebler's production hailed by the Los Angeles Times as a Critics' Choice.
The New York Times praised Cain's "impish humor".
His play How to Write a New Book for the Bible was produced at Seattle's REP, January 13 to February 5, 2012, and afterwards, at various venues around the country. The play is based on Cain's own family.